...It collects rules of spacing, punctuation, emphasis, and layout that improve readability, especially in documents mixing multiple languages or code. The repository focuses on consistent micro-typography—such as when to use non-breaking spaces, how to place punctuation around quotes, and how to format lists and headings. Examples show the before/after impact of small adjustments, making the guidance practical rather than theoretical. Because the recommendations are tooling-agnostic, they apply to Markdown, HTML, slides, and printed PDFs alike. It’s a handy checklist for authors who want cleaner, more professional documents without becoming typography experts.